Game Saves 활성 디바이스 변경

// Set up the active device changed callback during initialization
hr = PFGameSaveFilesSetActiveDeviceChangedCallback(
    optionalTaskQueue,                    // Use nullptr for immediate callback
    MyActiveDeviceChangedCallback,        // Your callback function
    contextPtr);                          // Optional context for your callback

void MyActiveDeviceChangedCallback(void* context)
{
    // The current device is no longer active for Game Saves
    
    // 1. Pause the game immediately
    
    // 2. Inform the player what happened
    // with a message such as:
    // "Your game progress is being continued on another device."
    // "Returning to main menu to prevent data loss."
    
    // 3. Return to a safe state (main menu)
    
    // 4. Re-initialize Game Saves system when ready to play again
    // (The player will need to sync again from the main menu)
}